If you want to learn how to play Gin Rummy, the game comes down to three ideas: build melds, keep your deadwood low, and score points by ending the hand at the right time. It is a two-player rummy game that is easy to start, but it rewards careful card tracking and smart timing.
This guide walks you through the setup, the turn sequence, what counts as a valid meld, how deadwood works, and how scoring is calculated. If you already know the basics, you can still use the examples and scoring notes below to avoid common mistakes.
What you need to play
- Players: 2
- Deck: Standard 52-card deck, no jokers
- Goal: Form valid melds and reduce unmatched cards, called deadwood
Basic setup
- Shuffle the deck thoroughly.
- Deal 10 cards to each player, one at a time.
- Place the remaining cards face down to form the stock pile.
- Turn the top card of the stock face up next to it to start the discard pile.
The face-up card begins the discard pile, and the game starts with the non-dealer taking the first turn. Players keep their cards hidden from the opponent throughout the hand.
How a turn works
On your turn, you must do three things in order:
- Draw one card from either the stock pile or the top card of the discard pile.
- Lay off or knock only if you are ending the hand and the rules allow it.
- Discard one card face up to end your turn.
You cannot skip the discard. After you discard, the other player takes a turn and chooses from the top of the stock or discard pile again.
What counts as a meld
A meld is a set of cards that fits one of two patterns:
- Three or four of a kind: for example, 7♠, 7♥, 7♦
- A run: three or more cards in the same suit in sequence, such as 4♣, 5♣, 6♣
Only cards in a valid meld are safe from deadwood points. A card can belong to only one meld at a time, and melds must be complete before they count.
Examples of valid melds
- 9♦, 9♣, 9♠
- J♥, Q♥, K♥
- 3♠, 4♠, 5♠, 6♠
Examples that are not valid melds
- 5♣, 5♦, 6♣ — this is not a set or a run
- 8♥, 9♥ — too short to count as a run
- Q♠, K♠, A♠ — in standard Gin Rummy, ace is low, so this is not a valid run
Deadwood explained
Deadwood is any card in your hand that is not part of a meld. At the end of a hand, deadwood cards are counted for points, and lower is better.
Card values for deadwood are simple:
- Ace = 1 point
- Number cards = face value
- 10, J, Q, K = 10 points each
For example, if your unmatched cards are A♣, 6♦, and K♠, your deadwood total is 1 + 6 + 10 = 17 points.
Knocking and going gin
There are two main ways to end a hand:
- Knock: End the hand when your deadwood totals 10 points or fewer.
- Go gin: End the hand when all 10 cards are in melds and you have no deadwood at all.
To knock, you usually place your final discard face down to show you are ending the hand. The opponent then gets a chance to lay off cards if the rules you are using allow it.
What happens after a knock
After a player knocks, the other player reveals their hand. The non-knocking player may be able to reduce their deadwood by adding cards to the knocker’s melds, a process called laying off.
Example: if the knocker has 7♠, 8♠, 9♠ as a meld, the opponent may lay off 10♠ if they hold it. That card no longer counts as deadwood.
How scoring works
Scoring in Gin Rummy depends on how the hand ends. The basic idea is to compare deadwood totals, then award the difference in points.
If you knock
Compare your deadwood to your opponent’s deadwood after any layoffs.
- If your deadwood is lower, you score the difference.
- If your opponent’s deadwood is equal to or lower than yours, they get an undercut bonus and score the difference instead, plus a bonus in many common rule sets.
Example: You knock with 8 deadwood points. Your opponent has 13 deadwood points after laying off. You score 5 points.
Example: You knock with 7 deadwood points. Your opponent has 5 deadwood points after laying off. Your opponent undercuts you and scores the difference, often with an added undercut bonus depending on the house rules.
If you go gin
When you go gin, your opponent cannot lay off any cards. You score the opponent’s full deadwood total, often plus a gin bonus in common rule sets.
Example: You go gin and your opponent has 22 deadwood points. You score 22 points, plus any gin bonus used in your game.
Common bonus points
Many groups use these bonuses, though exact amounts can vary by house rules:
- Gin bonus: extra points for going gin
- Undercut bonus: extra points when the non-knocking player has equal or lower deadwood
- Game bonus: extra points for reaching a target score first
If you are playing casually, agree on the bonus rules before the first hand. That prevents arguments later.
A complete example hand
Suppose your hand contains:
- 2♥, 3♥, 4♥
- 8♣, 8♦, 8♠
- K♣, 7♦, A♠, 10♥
You have two melds: a heart run and three 8s. Your deadwood is K♣, 7♦, A♠, and 10♥, which totals 10 + 7 + 1 + 10 = 28 points.
If you draw a Q♣ and later make a K♣, Q♣, J♣ run, your deadwood drops. That is the heart of Gin Rummy: keep improving your hand while watching what your opponent may want.
Smart play tips
- Discard carefully. Do not throw away a card that clearly helps your opponent build a run or set.
- Watch the discard pile. Repeatedly taking from the discard pile can reveal what your hand is shaping into.
- Keep flexible cards. Cards that can fit into more than one possible meld are often valuable early in the hand.
- Count deadwood often. If your deadwood is near 10, think about whether knocking is better than chasing a perfect hand.
- Do not overcommit too soon. Holding one plan too long can leave you with high deadwood if the cards do not cooperate.
Common mistakes to avoid
- Forgetting that ace is low in runs
- Trying to use the same card in two different melds
- Knocking with more than 10 deadwood points
- Miscounting face cards as 11, 12, or 13 instead of 10
- Leaving the discard face up after your turn instead of ending with one card discarded
Quick reference for scoring
| Situation | What happens | Typical result |
|---|---|---|
| You knock and have less deadwood | Opponent reveals hand and may lay off | You score the difference |
| You knock and opponent has equal or less deadwood | Opponent undercuts you | Opponent scores the difference, often plus a bonus |
| You go gin | Opponent cannot lay off | You score opponent’s full deadwood, often plus a bonus |
House rules to agree on before you start
Gin Rummy has a few common variations, so it helps to settle the details before dealing:
- Whether an undercut bonus is used
- Whether the game ends at 100, 150, or another target score
- Whether going gin earns a fixed bonus
- Whether the winner gets extra points for winning the final hand
Once those rules are clear, the game moves quickly and the scoring stays easy to follow. A good first goal for new players is simply to recognize melds fast, keep deadwood low, and know when to knock instead of waiting too long.